Computer Basics
One megabyte is bytes: a. 1000 b. 1 million c. 8 million d. 1, 048,476 e. 1 millionth
1, 048,476
Binary code for the decimal number 19 is: a. 10011 b. 10010 c. 1010 d. 10101 e. 10111
10011
The binary number 111110 translates to the decimal number: a. 21 b. 30 c. 62 d. 126
62
In computer terminology, a kilobyte is the equivalent of 1024 characters that consist of bits of information: a. 128 b. 1024 c. 8192 d. 102,400
8192
I/O devices employed in radiologic imaging include all of the following except: a. CPU b. magnetic tape reel c. multiformat camera d. compact disc
CPU
In teleradiology, which of the following speeds up the downloading of an image from the RIS to a radiologist's home computer? a. DMA b. WAN c. HIS d. VDT e. ROM
DMA
Instructions designed to only be read and followed, but can be updated if special equipment or downloads are used, would most likely be stored as ________ memory: a. EPROM b. ROM c. RAM d. DRAM
EPROM
Which of the following best describes non-volatile ROM code that is used by specific devices (such as cell phones) when the system first starts up: a. Firmware b. Hardware c. Software d. BIOS
Firmware
Which of the following is designed to ensure that computerized files of images and patient information cannot be permanently lost: a. PACS b. HIS c. RIS d. RAID
RAID
A PACS is used as part of a(n): a. RIS b. CGS c. VDT d. WAN e. DMA
RIS
RAM which is retained by the computer when the power supply is shut off is called: a. ROM b. DRAM c. SRAM d. PRAM e. internal RAM
SRAM
Which of the following directs the flow of information between the keyboard, mouse, monitor screen, printer and other I/O devices? a. The bootstrap program b. The flash driver c. The BIOS d. The DMA e. The ROM
The BIOS
The "on" and "off" states representing binary ones and zeros for a flash memory drive are based on: a. Whether laser light is reflected or dispersed b. Whether magnetized iron filaments face one way or another c. The degree of resistance to electrical current d. Whether a flash of light occurs or not
The degree of resistance to electrical current
Which of the following is the best example of secondary RAM? a. a modem b. a magnetic tape c. a compact disk d. firmware
a compact disk
Of the following, which best represents an analog device: a. a raffle ticket b. a traditional screen/film radiograph c. a gasoline pump with liquid crystal (LCD) readout d. a "hard copy" printout of a computed radiography (CR) image
a traditional screen/film radiograph
To help identify and direct information to the proper memory location, a unique identifying label called a(n) is applied to it: a. cursor b. terminal c. bus d. port e. address
address
Which of the following are parts of the CPU? a. memory b. the control unit c. the arithmetic/logic unit d. all of the above e. none of the above
all of the above
The video display terminal that displays information as a series of letters, numbers or symbols is referred to as: a. graphic display b. binary display c. cryptic display d. alphanumeric display
alphanumeric display
Which of the following is an example of a LAN? a. a CPU using ROM b. an SI using CGS c. an RIS using a PACS d. a VDT using a CRT
an RIS using a PACS
Which of the following is most associated with the very first generation of computers? a. peg wheels b. vacuum tubes c. an abacus d. transistors
an abacus
Which of the following best describes an algorithm: a. a computer language b. rarely used in diagnostic imaging c. an equation in computer language d. an operating system
an equation in computer language
The speed at which information can be transferred from one computer device to another is the: a. modem speed b. processor speed c. batch rate d. baud rate e. DMA rate
baud rate
In computer terminology, a single binary digit is referred to as a: a. byte b. integer c. bit d. chip e. glitch
bit
When a computer is turned on, the very first interaction is through the: a. bootstrap program b. arithmetic/logic unit c. I/O manager d. file manager e. application system
bootstrap program
Each character of the keyboard is normally encoded using 8 bits of binary information. This then constitutes the basic unit by which the capacity of a computer is measured, called a(n): a. octet b. byte c. bit d. word e. megabit
byte
The interpretation of the user's instructions along with transfer and retrieval of the information to the proper devices for processing is the function of the: a. control unit b. memory unit c. arithmetic unit d. input/output devices e. compiler
control unit
The VDT in a computer system is a(n): a. display screen, keyboard and mouse b. CPU and I/O unit c. modem d. SPR and constructor
display screen, keyboard and mouse
Flash memory sticks store data in the form of: a. optical reflections b. magnetic patterns c. light and dark spots d. electric charges
electric charges
An example of an intermediate computer language used by compilers and interpreters, not by users, would be: a. binary b. visual basic c. cobol or C++ d. MS word e. hexadecimal or ASCII code
hexadecimal or ASCII code
UNIVAC, EDVAC and ENIAC are: a. computer operating systems b. historic computers c. computer languages d. computer compilers e. computer applications
historic computers
A universal serial bus (USB) port is a type of: a. peripheral b. interface c. compatibility d. modem e. cable
interface
Which of the following is also known as "object code": a. source code b. high-level language c. user code d. machine language e. DMA
machine language
In effect, what an analog-to-digital converter (ADC) does is to: a. mathematically round out measurements b. convert all incoming data into ASCII code c. act as a language compiler d. convert the x-ray signal into an electronic signal e. convert the electronic signal into display brightnesses
mathematically round out measurements
The control panel for most computerized radiographic units incorporates a: a. minicomputer b. microcomputer c. main frame computer d. supercomputer e. analog computer
minicomputer
In a computer, information that is frequently added, deleted or changed by the computer is most likely to be stored in: a. read only memory b. random access memory c. arithmetic/logic memory d. multiformat memory
multiformat memory
Generically, each user-accessible device within a digital imaging network is referred to as a(n): a. node b. terminal c. window d. PACS e. CRT
node
Which of the following best describes memory that is saved regardless of whether the power to the computer is turned on or off: a. ROM b. RAM c. volatile d. nonvolatile e. internal
nonvolatile
To encode is to change from: a. bits to bytes b. bytes to bits c. ordinary characters to binary digits d. alphabetic characters to decimal characters
ordinary characters to binary digits
All of the following are components of a flash memory cell except: a. pits and lands b. a control gate c. a floating gate d. a thin oxide layer
pits and lands
Which data processing method is best suited for displaying medical images: a. on-line processing b. batch processing c. real-time processing d. off-line processing
real-time processing
A network ______ connects two or more computer networks: a. protocol b. switch c. router d. node
router
The PACS is the portion of a digital radiologic imaging system that is involved with: a. production of soft copy images b. manipulation of soft copy images c. storage and transfer of soft copy images d. acquisition of soft copy images e. production of hard copy images
storage and transfer of soft copy images
Operating systems, assemblers and compilers are types of: a. high-level languages b. systems software c. applications software d. read-only memory e. primary memory
systems software
The ability to send radiographic images from one place to another over phone lines, cables or satellite systems is known as: a. teleradiology b. digital steering c. digital archiving d. random access
teleradiology
Which of the following was the most important step in the development of modern electronic computers: a. the diode b. the transistor c. the capacitor d. the abacus e. the resistor
the transistor
